Twisting-machine.



PATNTED-MAY 5, 1908. P. HARD-MAN. TWISTING MACHINE. APPLICATION FILED ooT.9,19o5.

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I w m if! @XM/kwamen IIA TNO. 886,698.

PATENTED MAY 5k 1908.

P. HARDMAN. TWISTING MACHINE. a APPLICATION FILED ooT.9,19o5.

4 SHEETS-SHEET z.

Swoon/Lto@ /mMA/v y @rml/564 PATENIBD MAY 5, 1908A l P. HARDMAN.-

TWISTING MACHINE. APPLIOATION FILED 00T. 9,1905

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l f5 65 j 6/02 MINI PATENTBD MAY 5, 1908.

P. HARDMA'N. TWISTING MACHINE. APPLICATION I'ILED'OOT. 9,1905.

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UNITED STATES PigTENT onnic.

PETER HARDMAN, OF WILLIMANTIC, CONNECTICUT, ASSIGNOR TO AMERICAN THREAD GOM- PANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

TWISTTNGMACH'INE.

Specification of Letters Patent.

Patented may 5, 190s.

To all whom it 'may concern:

Be it known that I, PETER HARDMAN, a i

citizen of the United States, residing at vWillimantic, county of Windham, Connecticut, have invented certain new and useful Improvements in Twisting-Machines, of which the following is a full, clear, and exact description.

My invention relates to improvements in p fpchines for twisting thread, yarn, andthe 1 e.

The object of the invention is to construct a .machine which will require' a minimum amount of power Ato drive, which can be run at a high rate of s eed,which will be sim le to operate and willi pro The invention consists in improvements, the principles of which are illustrated in the t accompanying three sheets of drawings` feed of the strands -to the flier and means for controlling the speed of rotation of the bob- Briefly, the improvements consist in new and improved mechanismfor controlling the bin, which is rotated bv Athe thread vbeing wound.

The machine as actually. constructed comprises a longitudinalshaft having tight and loose pulleys driven from a countershaft, From this longitudinal shaft two series 'of machine lunits are driven, twelve on each side. I have shown herein only the construction of. two oppositelyl arranged units.-

Each unit comprises mechanism for the control of a single spindle.

Figure 1 is an end view of the machine i showing the two oppositely arranged units,

-f section of one unit.

parts of the right hand unit being shown in section. Fig. 2 is a 'side view and partial Fig. 3 is a side view of the rolls and gearing for controlling the feed of the same, .one of the rolls being shown in Adotted lines ina position released fromthe other roll. Fig.` 5 is a detail of ,a catchvsecured to the arm of the outer roll. Fig` 6 is a sectional view of guide-rollers and a trough containing Water for moist'ening the strands.v Fi 7 is an end view of the same, the guide-v ro ers being shown dotted in their raised position.. v Fig. 8 is a view of the bobbin andV its carriage and. control mechanism. Fig. 9 is a' plan view oi the control mechanism, the bobbin being shown in section. Fig. 10 is an end view of the same. Fig. 11 shows the lier and bobbin and the driving trains.

duce uniform resu ts.

1 indicates the frame of the machine. 2 is the mainlongitudinal shaft having a suitable pulley 3 to be driven from a counter-- shaft.

4 is a bevel gear on the main lshaft 2. 5 is a bevel pinion on shaft 6 which vwill be termed the driving shaft.

. The two mechanisms or units on4 the right and left hand of the section line X-X in Fig. 1 are the same, consequently only one will be described. The pinion 5 is in mesh with gear 4 and thus the twisting unit is driven.

7 is a clutch disk mounted on shaft 6 to rotate therewitlnbut longitudinally movable to a limited extent,

Q8 is a pulley located Abetween collars fixed on shaft 6 .but not otherwise .connected thereto. f

'9 is a hand-lever connected by arm 10, link. 11 .and lever 12.with the clutch'7` for throwing it into andoutof engagementwith the pulley 8, thus connecting or disconnectingthe pulley from lthe driving shaft to Start or stop the machine. Hand lever 9 and arm 10y are shown in full on the left hand unit and dotted on the right hand unit..

y 13 is the-'flier having a pulley '14 connected' by a belt 15 to pulley 8.

16 is -a hollow shaft of the flier acting as a twisting chamber for' the strands 17, and having suitable bearings in the frame .of the machine.

-' 18 indicates the spools from-which the' strands are drawn to the flier. Any number of these may be. ein loyed according tothe number of strands w 'ch the'twisting thread is to have; They are located in a`convenient place at the sides of the machine.

19 isa small cup or; trough for containing water which is fed in through pipe 20 for moistening the strands.

21 and 2 2- are orcelain guide-rollers over'.

and beneath 'which the strands are passed and which serve to hold the strands in the cup 19. The roller 22 is mounted to rotate -on a stationary axis above the level of the water in 'the cup, but the roller 21 is mounted on an axis carrled by the arm 23:

24 is a handle outside the cup which 1s connected to the arm 23 so that the roller -211 may be liftedl out of the cup and the strands Areadily passed over the free end. The

handle 24 isheld in place friction all'yso vthat the ordinary'pull of the strands does notdiszo, A

' the worm gear 28 which is on turb the position ofthe roller 21 in the cup.

As the cup is of small size,.only a small quantity of water is exposed at a time. This prevents the accumulation of dirt and the sprocket 29.

is a chain connecting sprockets 29 and 31.

of .the roller 25 and gear 35. 3.6 is a ear in mesh with gear and on the shaft of't e roller 26.

37-37 are arms pivoted on rod 38 andcar- .the shaft of the roller 26 and gear 36.

thestrands of thread are gri ped etween :the rollers 25 and 26, and t e rollers-are driven positively from the flier/shaft. When' it is vdesired tostop the feed of strands the roller 26 may be disengaged fromthe roller' v 25, the gear I36 at the same timebeing thrown out of mesh with the gear 35 by simply tilthaving an L-shaped slot 40, catches on the r roller shaft 41 ho dingv the frame with thev 85.

ing thev frame 37'-37 away from the roller 25,

as fshowii indotted lines in Fig.` 4. At this timethe dog 39 carried by the frame 37 and roller 26 disengage from theroller 25. The

shaft of the sprocket`31 and gear l33 being removablyclamped to the' frame in slot 32, it is veryeasy to remove the gear'33 and replace it with another having more or less teeth depending upon the rate of feed control desired;

42 isthe bobbin or spool upon which the bobbin carriage 44 is guided.

- 45 isa dead'or statlonary spindle mounted rigidly on the bobbin carriage.

46 is a 7 sleeve rotatably mounted on` the spindle 45 and prevented from longitudinal removal by the cap, 46', which is attached to the spindle.

47 is a flange preferably integral with the sleeve 46-and having means of engagement or connection with the bobbin 42. The bobbin and the sleeve 46 are rotated by the pull of the thread which is being wound. As the thread is being wound, the bobbin is reciprocated longitudinally relative to the flier by the system of gears consisting of sprocket 48, chain 49, sprocket 50, worm 51, worm wheel 52, shaft 53 and cam 54.

55 is a vertically movable pin pro`ecting from the lever 55 pivoted to the obbin frame into a groove in the cam 54. y

56 is a hand lever pivotally mounted in the positiverate of speed relativegtol the shaft with` 33 is a ear rast on the shaft of the sprocket 31 in me's with gear 34Awhich ison the shaft en the parts are in the normal osition.

bobbin carriage` and having 'one arm confor instance1500 revolutions per minute. If

the thread is desired to have say i'ive twistsv or turns per inch of length, the thread must be fed through the flier shaft at the rate "of one-fifth of 1500, or `300 inches per minute. The customary bobbin is six inches inl cirvcum erence when empty, so that the bobbin must rotate relative to'the flier at the beginning of the operation at the rateof one-sixth of 300, or 50 revolutions per minute, which is an actual angular speed of 1500 minus 50,4

or 1450. When the bobbin has increased in size to a circumference of say ten inches, it is obviousv that with the same rate of feed of strands the bobbin must make fewer revolutions relative to the flier, namely, one-tenth of 300, or 30, ora-n actual angular speed of' 1470` revolutions per minute. ln other words, its actual speed has increased 20 revolutions per minute, This actually takes place by reason of the increased diameter of the bobbin and its lconsequentl leverage as the bobbin builds up, without materially varying the tension 4on the threa The necessary retardation of thel bobbin is afforded by the mechanism'shoym on Sheet 3 of the-drawings.. 60 and 61 are two drumsV of differentv diameters carried by the sleeve 46, and preferably of stee'l, having their faces' grooved. 62 and 63 are drums correspondinsly shaped, formed preferably of some materlalsuc as papier-mch, and mounted on the shaft 64- carried by the arm 65 which is pivoted on rod 66. 67'isI a screw-threaded post pivotally mounted in the bobbin carriage and projecting through an opening in the arm 65, andhaving anl adjusting nut 68 whereby the pressure of the drums 62 and 63 against the drums 60 and 61 may be increased 'or diminished as desired. The two drums 60 and 61 of course rotate witlithe bobbin and at an increasing vspeed as the bobbin is being wound. The ratio of the dialneters of the drums 60-61|6263 is such that a slippageoccurs between the two pairs of drums which affords the frictional resistance necessary to cause the bobbin to lag behind the flier, The heat produced by the '12d friction is quickly dissipated, since the surfaces of the drum are `constantly moving.

The. friction remains practically constant,

during the operation of the machine and conseuently the resistance to rotation of the bo bin is substantially constant.' Hence' the tension in the thread remains vconstant and the product of the machine is of uniform` 'lfhe arm 65,

twist, density and diameter. together with the drums 62 and 63 may be of a bobbin, a flier, means for driving said ler, ahollow iiier shaft, a pair of rollers geared to each other having driving connections with'the lier shaft for controlling the feed of strands through said shaft to said flier, and a movable frame supporting one of said rollers `whereby said roller may bedisengaged from the other roller.

' 2. In a twisting machine, the combination of a bobbin, a iiier, means for driving said Hier, a hollow flier shaft,l a pair of rollers geared to each other and 'having driving connections with said flier shaft for controllin the feedof strands through said shaft to said Eier, a movable frame `supporting one of said rollers whereby said roller maybe disengaged from the other` roller and supported 1n its disen aged position.

3. a twisting machine, a iiier, means for driving said flier, a spindle, a sleeve rotatably mounted thereon and ada ted to carry the bobbin, two drums rotatabl) and two rotatable drums connected together and engaging said sleeve drums, the ratio of the diameters of the contacting pairs of drums being different. v

4. a twisting machine, a iiier, means for driving said Hier, a spindle, a sleeve rotatably mounted thereon and ada ted to carry the bobbin, two drums rotatab e'with said sleeve,

two rotatable. drums connected together and engaging said sleeve drums, the rat/io of theI diameters ofthe contacting pairs of drums being different, and means for adjusting the preslsure of one pair of drums against the other` 5. lIn a twisting machine, a Hier, means for rotatin said iier, a bobbin carrying sleeve adapte to' be driven b wound, means for controlling the rate of fee of strands to said iier'and bobbin, a pair of drums rotatable with said sleeve, and a second pair of drums of different diameters frictionally'engagling said sleeve drums for the purpose spec' ed 6. In a twisting machine, a flier, means for rotatin said flier, a bobbin carrying sleeve adapte to be driven b the thread bein wound, means for contro ling the rate of fee of strands to said flier and bobbin, 'a pair. of grooved drums rotatable with said sleeve, and a second pair of grooved drums of different diametersfrictionally engaging said sleeve drums the ratio of the diameters of the contacting pairs of drums being dierent forpthe purpose specified. i

7. In a twisting machine, a flier, means for 4driving said flier, a bobbin carr ing sleeve adapted to be driven by the pullo the thread e with said sleeve the thread, beingV being wound, a pair of metal drums rotatable with said sleeve, and a pair of' softer drums of material such as pa engaging said meta diameters of the contacting pairs of drums being diiierent.4 v

8. In a twisting machine, a flier, means for driving said iier a bobbin carrying sleeve adapted to be driven by the pull of the thread being wound, a pair oi grooved metal drums rotatable with said sleeve, anda air of lsofter grooved drums of material suc as papierier-mch rictionally mch .frictionally engaging said metalv drums the ratio of the diameters of the contacting pairs of drums being dier'ent.

9. In a twisting machine, a flier, means for driving said iiier, a bobbin carrying sleeve adapted to be driven bythe pull ofthe thread being wound, a pair of meta drums rotatable with said sleeve, a pair of softer drums of material such'as papier-mch frictionally en-k gaging said metal drums, the ratio of the diameters of the contacting pairs of drums being -different and `means for adjusting the pressure between said drums. I

10. In-a twisting machine, a flier, means for driving said ilier, a bobbin carr ing. sleeve adapted to be driven'b lthe pull o the thread being wound, a pair o grooved metal `drums rotatable with said sleeve, a `pair of softer grooved drums of material such as papiermch frictionally engagin said grooved metal' drums, the'ratio of t e diameters of the contacting pairs of drums being diii'erent and means for 'adjusting the pressure between said metal drums.

1 1. In a twisting machine, a flier, means for rotatinglsaid ier,.`a bobbin carryin sleeve,

rums the ratio of the drums rotatable therewith, a secon pair of drums engagingsaid rst 'mentioned pair of drums, lthe ratio `of the diametersof the contacting pairs o'r' drums beingdifierent, a pivoted arm carrying said second mentioned pair of drumsv a pivot 4pin supporting said arm, means fdr holding said arm with said drums in engagement, said arm being removable i'rom said lpin when said drums are' dis- "engaged t A 12. In a twisting machine, a iiier, means for rotat' said iiier, a `bobbin carrying sleeve, groove drums rotatable therewith, a second pairl of grooved drums en aging said first "mentioned, pair of grooved rums, the ratios ofthe diameters of the contacting pairs of drums being different, apivoted arm carrying said second mentioned pair of grooved drums, a ivot pin supporting said arm, means for ho ding said arm with said grooved drums in engagement, said arm bein -removable fromsaid pin when said groove drums are disengage f PETER'HARDMAN. Witnesses:

S. S. Boss, DWIGHT A. LYMAN. 

